Coal oil lamp chimney



PATENTED JUNE 3, 1862.

W. ,HOWARD. GOAL 01 LAMP CHIMNEY.

To all whom, it may concern.- 1

of New York, haveinvented a new and useful Improvement in Glass Chimneysand Cones to the accompanying drawings,

I a horizontal section line 3 y, Fig. 1.

I To enable thoseskilled i'n'the art to mak 1 of the usual form, butinste'ad of being burner, as heretofore, I place the cone within coneand chimneytogether, thefconstrnction being such thatthe base of thechimney and the base of the cone are united together.

molded-separately andthen attached. by fu-' sion, or they may be blownor molded to I ci rcumferentially a series of holes, b,"in a planewhich'intersects thelcone horizontally about at its center, as shown atFig. 1. When the cone and chimney thus attached or connected I the samerelative position with each other and theburner as those in commonuse,.w hich are attached and'applied separately to the burner.

- fiburner, as usual by any suitable catch, or. fastening.

tachedto the chimney,the'y both are removed I manipulating the parts,but, fracturing by UNITED STATES PATENT Grace.

WILLIAM HOWARD, OF FLUSHING, NEW YORK.

com. oILLAMP cu-lmnev.

, srncrrxch'rron forming part of Letters Patent No. 35

,447, dated a... s, 1862.

, Be it known thatl, WILLIAM HOWARD, of Flushing, in the county ofQueens and State for Coal-Oil Lamps; and I do hereby declare that thefollowing is a full, clear,and exact description of the same, referencebeing had making a part of this specification, in which- Figure 1 is avertical central section of my invent1on,taken in the hue mm,

Fig. 2; Fig. 2, of the same, taken in the.

Similar letters of reference indicate correspondingyparts in thetwofignres.

e and use my invention, I will. proceed to de scribe its constructionand operation. k I A represents a glass chimney,and B aglass cone ordeflecton, These parts mayboth be detached and appliedse'parately to.the lampt'he chimney and attach the lower edges of the The cone andchimneymaybe blown or gether in one piece atone operation; and in thelowerv part of the chimney'there'are made together are applied to. theburner,they have The base of the cone or flange a is fittedin theand'may be secured therein The advanta lows:

First. The 00 ges of the invention areas fol ne" being permanentlyatfrom and applied to the burner. simultaneously, and hence notonly timeis saved incasual dropping rendered less frequent, as

one piece is handled instead of two, and the glass'cone being small,is;wh'en detached from the chimney as heretofore, dropped, especially bycareless persons; besides the parts are stronger combined thanwhenscparate from each other.

, Second. The combined. chimney and cone very frequently may bemanufactured at a less cost than when made separately, as heretofore.

Third. By having the holes I) made in the chimney, as shown, the air isadmitted to the exterior of the flame at a point'nearer its base thanformerly and acts upon or impinges against it in amore direct manner andwill insure perfect combustion with a low or small flame-a result whichis not attained in an ordinary burner, in consequence of said draftholesbeing "at or in q the base of, the cone.* Fourth. Theadvantageof theordinarydeuite close proximity to j tached glasscone is obtained, towitathe-radiation of the light afforded by thelower part of the flamewithin the cone; without the disadvantage of the latterv fracturing byexpansion in being heated'a result due to the fast- 7 .eningmechanically of the chimney to the base of the cone and directlyover thedraftpassages which supply the exterior of the flame with oxygenandwhich are form-ed. by radial grooves or corrugations at the base of thecone. The air passing through those passages at the bottom of thechimneykeeps the lower part of the latter comparatively cool,

while the cone, on account of its close proximity to-the flame, rapidlyheats and expands, and. the chimney 'being'insulated from the cone bythe air-passages does not readily expand, and the break. w

By my inventiou'it will be seen that the chimney and cone, inconsequence'of being formed in onepiece admit of the heat being conveyedto the lower part of the chimney from the cone, and the former isallowed'to expandwith the latter prevented.

I am aware that detached glass cones have been used, and these I do notclaim. I am also aware that the lower part of the chimney has been socontracted as to dispense with the use ofa cone, as shownin Dickies -andfracture thereby patent, 1862. This, therefore, I do not claim.

cone consequently isliable to 2 n sum as new and desire to secure byLebbers Patenbdescribed As an improved article of manufacture, a

chimney and cone made with the bases of the. .i

two parts joined t0gether,the cone being placed Witnesses:

Within the chimney and the latter being pro- JAMES LAIRD,

'vided with apertures 11 to admit air between J. W. COOMBS.

Having thus described niy inventionl claim the cone and chimney, allasherein shown and WILLIAM HOWARD.

